Home / 9,105.36-13,658.85-3,910.02

Finding the Fourth Proportional to 9,105.36, 13,658.85 and 3,910.02

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Solution

The fourth proportional to 9,105.36, 13,658.85 and 3,910.02 is: 5,865.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,105.36 : 13,658.85 = 3,910.02 : x
  2. Step 2: Convert to fraction form
    9,105.36/13,658.85 = 3,910.02/x
  3. Step 3: Cross multiply
    9,105.36x = 13,658.85 × 3,910.02
  4. Step 4: Simplify right side
    9,105.36x = 53,406,376.68
  5. Step 5: Solve for x
    x = 53,406,376.68/9,105.36
  6. Step 6: Final answer
    x = 5,865.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.